CA1194156A - Phase-locked loop with d.c. modulation capability - Google Patents

Phase-locked loop with d.c. modulation capability

Info

Publication number
CA1194156A
CA1194156A CA000426276A CA426276A CA1194156A CA 1194156 A CA1194156 A CA 1194156A CA 000426276 A CA000426276 A CA 000426276A CA 426276 A CA426276 A CA 426276A CA 1194156 A CA1194156 A CA 1194156A
Authority
CA
Canada
Prior art keywords
pulses
output
frequency
polarity
response
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA000426276A
Other languages
English (en)
French (fr)
Inventor
Ronald H. Chapman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Motorola Inc filed Critical Motorola Inc
Application granted granted Critical
Publication of CA1194156A publication Critical patent/CA1194156A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
    • H03C3/0975—Modifications of modulator for regulating the mean frequency using a phase locked loop applying frequency modulation in the phase locked loop at components other than the divider, the voltage controlled oscillator or the reference clock
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
    • H03C3/0941—Modifications of modulator for regulating the mean frequency using a phase locked loop applying frequency modulation at more than one point in the loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
    • H03C3/095—Modifications of modulator for regulating the mean frequency using a phase locked loop applying frequency modulation to the loop in front of the voltage controlled oscillator
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
    • H03C3/0966—Modifications of modulator for regulating the mean frequency using a phase locked loop modulating the reference clock
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K7/00—Modulating pulses with a continuously-variable modulating signal
    • H03K7/06—Frequency or rate modulation, i.e. PFM or PRM
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/12—Modulator circuits; Transmitter circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
CA000426276A 1982-05-14 1983-04-20 Phase-locked loop with d.c. modulation capability Expired CA1194156A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US37803782A 1982-05-14 1982-05-14
US378,037 1982-05-14

Publications (1)

Publication Number Publication Date
CA1194156A true CA1194156A (en) 1985-09-24

Family

ID=23491467

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000426276A Expired CA1194156A (en) 1982-05-14 1983-04-20 Phase-locked loop with d.c. modulation capability

Country Status (11)

Country Link
EP (1) EP0108124B1 (fi)
AU (1) AU561184B2 (fi)
CA (1) CA1194156A (fi)
DE (1) DE3380333D1 (fi)
DK (1) DK163623C (fi)
FI (1) FI840102A (fi)
IL (1) IL68509A (fi)
MX (1) MX153073A (fi)
SG (1) SG86491G (fi)
WO (1) WO1983004148A1 (fi)
ZA (1) ZA832834B (fi)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61277211A (ja) * 1985-06-03 1986-12-08 Toshiba Corp 周波数変換装置
GB2313000B (en) * 1996-05-07 2000-10-25 Nokia Mobile Phones Ltd Frequency modulation using a phase-locked loop

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4206424A (en) * 1978-10-03 1980-06-03 Rca Corporation Digitized phase modulating means

Also Published As

Publication number Publication date
SG86491G (en) 1991-11-22
AU1609083A (en) 1983-12-02
FI840102A0 (fi) 1984-01-12
WO1983004148A1 (en) 1983-11-24
ZA832834B (en) 1984-03-28
DK14684D0 (da) 1984-01-13
EP0108124B1 (en) 1989-08-02
FI840102A (fi) 1984-01-12
AU561184B2 (en) 1987-04-30
MX153073A (es) 1986-07-25
IL68509A0 (en) 1983-07-31
DE3380333D1 (en) 1989-09-07
EP0108124A1 (en) 1984-05-16
DK14684A (da) 1984-01-13
EP0108124A4 (en) 1984-09-11
IL68509A (en) 1986-09-30
DK163623B (da) 1992-03-16
DK163623C (da) 1992-08-17

Similar Documents

Publication Publication Date Title
RU2134930C1 (ru) Синтезатор частоты с делением на дробное число и коррекцией остаточной погрешности и способ синтеза частоты
US4471328A (en) Variable frequency reference source responsive to digital data
JP2650492B2 (ja) 変調スプリアス補償を有する分数ｎシンセサイザ
JP2526847B2 (ja) ディジタル方式無線電話機
EP0538903B1 (en) Frequency synthesis using frequency controlled carrier modulated with PLL feedback signal
US5903194A (en) Digital phase modulation of frequency synthesizer using modulated fractional division
US5065408A (en) Fractional-division synthesizer for a voice/data communications systems
JP3000673B2 (ja) 自動周波数制御装置
US4068198A (en) Phase-locked loop frequency shift key modulator
US6308049B1 (en) Fractional-spurs suppression scheme in frequency tracking multi-band fractional-N phase lock loop
US6873213B2 (en) Fractional N frequency synthesizer
KR20050070078A (ko) 위상동기루프회로에서의 잡음억제용 시스템 및 방법
EP0408238A2 (en) A frequency synthesiser
EP1098433B1 (en) Frequency synthesizer and oscillation frequency control method
JP2806059B2 (ja) 位相同期ループシンセサイザ
US4060773A (en) Frequency modulation system
JP2000031898A (ja) 移動電話用の送受信システム及び送信方法
US4464638A (en) Universal digital frequency synthesizer using single side band techniques
EP1297619B1 (en) Linear dead-band-free digital phase detection
CA1194156A (en) Phase-locked loop with d.c. modulation capability
US4567603A (en) FSK Modulator and method for NRZ data transmission utilizing PLL frequency synthesis
US6734749B2 (en) Direct modulated phase-locked loop
US5485129A (en) Method and apparatus for digital modulation using pulse deletion
US5436599A (en) Method and apparatus for digital modulation using pulse addition
US4095190A (en) Tuning system

Legal Events

Date Code Title Description
MKEC Expiry (correction)
MKEX Expiry